Quiz Questions: |
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| 1. |
What does MTBE stand for?
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Methyl tertiary-butyl ether |
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Methane tertiary-butyl ether |
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Methyl Tetra Butyl Ether |
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None of the above |
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| 2. |
Two types of oxygenates are commonly added to gasoline. They are ______________________:
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Ethers and alcohols |
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Methane and Butyl |
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| 3. |
MTBE is currently the most commonly used ether oxygenate due to its high-octane properties and availability. |
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True |
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False |
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| 4. |
Oxygenates were subsequently used at higher concentrations to reduce vehicle emissions and improve air quality. |
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True |
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False |
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| 5. |
______________ and other oxygenates generally have high vapor pressures, and they tend to volatilize readily from NAPL. |
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MTBE |
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Methane |
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| 6. |
Oxygenates have high tendency to volatilize from groundwater, and so the soil vapor in the vicinity of a dissolved-phase plume may only contain low, or even non-detectable, oxygenate concentrations. |
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True |
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False |
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| 7. |
What does TPH stand for?
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Total petroleum hydrocarbons |
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Simple crystal frequency synthesizer |
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Total petroleum hydrogen |
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Tetra Poly-Hydrocarbons |
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None of the above |
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| 8. |
Risk-based decision-making is a management strategy that adds exposure and risk considerations to the traditional components of the corrective action process.
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True |
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False
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| 9. |
A ________________ is an inventory of the actual and potential sources, pathways, and receptors related to the chemical release. |
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Conceptual site model (CSM) |
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Analytical method |
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| 10. |
The conceptual model is used in several ways. They are as follows: |
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To communicate site conditions to decision makers and stakeholders |
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To define potential exposure pathways for further investigation and evaluation |
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To derive pathway-specific, risk-based remedial goals |
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To select pathway-specific remedies to meet remedial goals |
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All of the above |
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| 11. |
The most common receptors affected by subsurface releases of oxygenates are the current and future users of potable or non-potable water from municipal or private water wells. |
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True |
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False |
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| 12. |
The objective of receptor characterization is to identify any receptors that could be affected by an oxygenate release. |
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True |
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False |
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| 13. |
The purpose of __________________is to estimate the extent (and to a lesser degree, the magnitude) of a subsurface release of oxygenated fuel.
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Plume delineation |
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Geological characterization |
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| 14. |
The purpose of flow system (hydraulic) characterization tasks is to understand the local and regional groundwater flow system and its impact on the migration of a dissolved plume.
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True |
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False |
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| 15. |
Dissolved-phase oxygenate plumes may display same geometries as dissolved-phase BTEX plumes.
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True |
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False |
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| 16. |
What does ESA stand for?
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Expedited Site Assessments |
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Empirical Site Assessments |
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Expedited Site Association |
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None of the above |
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| 17. |
The objectives of groundwater monitoring may include evaluating seasonal changes in site conditions, documenting evidence of source depletion, evaluating plume stability or migration, or assessing the effectiveness of corrective actions. |
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True |
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False |
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| 18. |
Direct push (DP) tools are used for subsurface investigations by driving, pushing, and/or vibrating small-diameter hollow steel rods into the ground. |
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True |
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False |
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| 19. |
There are two primary types of soil sampling tools. They are___________________. |
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Non-sealed samplers and piston sampler |
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Collecting and Load sampler |
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| 20. |
Multi-level groundwater monitoring can be accomplished by simply installing clusters of single interval monitoring wells at different depths. |
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True |
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False |
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